DataView.prototype.byteOffset - JavaScript 编辑

 byteOffset 属性描述了从 ArrayBuffer 开始的字节偏移量。

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语法

dataview.byteOffset

描述

 byteOffset 属性是一个获取(accessor)属性，它的 set 属性为 undefined，这意味着它是只读的。值在 DataView 被创建时就确定了，且不能改变。

示例

使用 byteOffset 属性

var buffer = new ArrayBuffer(8);
var dataview = new DataView(buffer);
dataview.byteOffset; // 0 (没有指定偏移量)

var dataview2 = new DataView(buffer, 3);
dataview2.byteOffset; // 3 (在构造DataView时指定)

规范

Specification	Status	Comment
ECMAScript 2015 (6th Edition, ECMA-262) DataView.prototype.byteOffset	Standard	Initial definition.
ECMAScript (ECMA-262) DataView.prototype.byteOffset	Living Standard

浏览器兼容性

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相关链接

• DataView
• ArrayBuffer